190 



DEPARTMENT OF THE yAYAL SEIiVICE 



10. Euchirella acadiana n. sp. — A few examples were taken of the female only of 

 tins species which I have not been able to fit in with any published description. The 

 occvirrence was at Acadia stations 41 (200-0 m., one) ; 44 (270-0 m., two) ; 56 (210- 

 140 fathoms, two). In the following diagnosis Giesbrecht's notation is employed: 

 Length 6.25 mm. (5 + 1.25) ; rostrum deflexed, pointed (fig. 10) ; genital segment sym- 

 metrical except for a low oblique brown chitinous ridge on the left side seen from 

 above near the hinder margin ; postero-lateral angles of f orebody broadly rounded. 



Fig. \0— Euchirella acadiana. Profile of head sliowing frontal 

 organ and rostrum, after removal of right antenna. 



Fig. 11.— Same. Proximal joints of right anterior antenna from inner aspect. 



Anterior antennae (fig. 11) of normal length, reaching to about the middle of the 

 urosome. 



